EP2427345A1 - Cadre de dossier pour un siège de véhicule - Google Patents

Cadre de dossier pour un siège de véhicule

Info

Publication number
EP2427345A1
EP2427345A1 EP10717160A EP10717160A EP2427345A1 EP 2427345 A1 EP2427345 A1 EP 2427345A1 EP 10717160 A EP10717160 A EP 10717160A EP 10717160 A EP10717160 A EP 10717160A EP 2427345 A1 EP2427345 A1 EP 2427345A1
Authority
EP
European Patent Office
Prior art keywords
frame
backrest
back frame
vertically extending
vehicle seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10717160A
Other languages
German (de)
English (en)
Other versions
EP2427345B1 (fr
Inventor
Cristina Matthey
Thomas Flehming
Andreas Ulrichs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Steel Europe AG
Original Assignee
ThyssenKrupp Steel Europe AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ThyssenKrupp Steel Europe AG filed Critical ThyssenKrupp Steel Europe AG
Publication of EP2427345A1 publication Critical patent/EP2427345A1/fr
Application granted granted Critical
Publication of EP2427345B1 publication Critical patent/EP2427345B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/68—Seat frames
    • B60N2/682—Joining means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/68—Seat frames
    • B60N2/688—Particular seat belt attachment and guiding

Definitions

  • the invention relates to a back frame for a vehicle seat, which has a transverse frame portion and two vertically extending frame portions and is U-shaped.
  • Automotive vehicle seats typically include a seat base on which the seat back is mounted.
  • This consists of a backrest frame, which is upholstered and covered with fabrics and / or leather.
  • the designs of the back frames differ, if a belt is integrated in the vehicle seat or not.
  • a particularly high strength of the backrest frame is required in order to be able to absorb the forces occurring in the event of an accident and to forward them to the attachment points of the vehicle seat.
  • the demand for the lowest possible weight of the back frame and beyond the most cost-effective production of the back frame are known from the prior art.
  • a back frame for a vehicle seat which is box-shaped, wherein the vertical and transverse back frame portions are provided by a respective Metallprofii.
  • the problem with this vehicle seat is that the frame structure is not readily adaptable to belt-integrated vehicle seats and consists of a relatively high number of individual parts.
  • a U-shaped back frame for a motor vehicle seat is known from German Utility Model DE 296 22 299 Ul.
  • the U-shaped back frame consists of vertical frame sections, which are made of two half-shells and which are connected via a likewise consisting of two half-shells transverse frame portion. This backrest frame therefore consists of six components.
  • the present invention has the object to provide a generic back frame, which has a minimum of components and at the same time allows the provision of a back frame for belt-integrated vehicle seats in a simple manner.
  • Half shell made of a metal is provided, which in each case forms a portion of the vertically extending frame portions of the back frame and a portion of the transverse frame portion of the back frame and a second half-shell sheet is provided, which is connected to the first half-shell and at least reinforced the transverse frame portion of the back frame.
  • Vehicle seat to provide.
  • half-shell sheets which are preferably deep-drawn, complex structures can be provided, which are able to absorb and dissipate the forces occurring in the backrest frame.
  • the cohesive connection between the half-shell sheets can be provided by welding, soldering or gluing.
  • the reinforcement of the transverse frame portion of the back frame is achieved via the second half-shell sheet, which is connected in this area with the first half-shell sheet, in particular in the butt joint.
  • flangeless half-shells are used.
  • the second half-shell sheet is U-shaped and additionally reinforced at least partially both vertically extending frame portions of the back frame.
  • the U-shaped design of the second half-shell sheet allows that the subregions of the vertically extending frame portions of the back frame can be amplified in a simple manner.
  • Half shell plate at least one side of the vertically extending frame areas completely can be simple
  • a backrest frame for belt-integrated vehicle seats is provided, which has a reinforced vertically extending frame area for receiving the forces due to the belt integration.
  • only one component, namely the second half-shell sheet, has to be changed, so that the backrest frame is suitable for a belt-integrated vehicle seat. This significantly reduces the tooling costs and thus the costs for producing corresponding backrest frames.
  • At least one of the half shells is made of a "tailored blank".
  • This "tailored blank” consists of at least two different sheets, which consist of materials specifically adapted to the load with corresponding wall thicknesses. The use of these "tailored blanks" for producing the shells for the backrest frame thus allows a further reduction in weight.
  • the above-described object for a backrest frame for a vehicle seat is achieved in that a deep-drawn sheet metal part is provided, which forms the transverse frame portion, a first and a second profile are provided, each of the vertically extending frame portions form, wherein the Rufcice Blechteii flanges for cohesive connection of the profiles and at least one of the vertically extending profiles
  • Hollow profile is made using the T3 technology.
  • T3 technology is a developed by the applicant forming process understood in which a board to flangeless., Low-spring calf shells and then a hollow profile of two flangeless calf shells is made or by a U / O-forming using a mandrel a flangeless hollow profile a board is made.
  • Both processes, which are understood by the term T3 technology have in common that a flangeless, structured hollow profile is produced in a simple and economic manner, so that costly hydrounaforming can be avoided.
  • a W / O-forming can also be used, wherein the board is first formed into a W shape and then formed into a closed hollow profile and welded.
  • the T3 reformation is done in a single device.
  • This variant of the back frame also comes with few components, due to the use of hollow profiles, which are made with the T3 technology, a minimum number of welds throughout the back frame can be present, so that maximum strength of the back frame with minimum number of parts can be provided.
  • hollow profiles which are made with the T3 technology
  • hollow profiles can be provided, which have complex cross-sectional changes, so that they are specifically adapted to the corresponding loads and yet only one weld in a board blank or two welds in the production have the hollow sections of two half-shells.
  • the T3 technology thus allows optimal adaptation to appropriate design specifications or trends.
  • the hollow profiles produced using T3 technology are flangeless, so that the material consumption and their weight are correspondingly low.
  • the flanges of the deep-drawn sheet metal part are used for connecting the sheet metal part with the profiles provided in each case. They allow a particularly simple and stable cohesive connection of the hollow sections to the transverse, deep-drawn sheet metal part.
  • this is provided for a belt-integrated vehicle seat.
  • an adaptation of this backrest frame can be achieved in a simple manner by a higher rigidity of a hollow profile, so that the occurring during the belt-integrated vehicle seat, increased forces can be absorbed by the back frame.
  • the deep-drawn sheet metal part and / or at least one of the profiles are made of a "tailored blank".
  • the "tailored blank” allows the use of different material grades and material thicknesses in a sheet metal part and thus in a profile or deep drawn part. With minimal use of material, further improvements with regard to the weight and the mechanical load capacity of the backrest frame can thus be achieved.
  • Fig. 1 shows an embodiment of an inventive
  • Back frame comprising at least two half-shell sheets for a normal vehicle seat
  • FIG. 2 shows a second embodiment of a backrest frame according to the invention, comprising two sheet-metal half-shells for a belt-integrated vehicle seat,
  • FIG. 3 is a schematic plan view of a third embodiment of a back frame according to the invention with profiles and a deep-drawn sheet metal part
  • 4 shows a detail view of the embodiment from FIG. 3 in the connection region between the vertical frame region and the transverse frame region,
  • FIG. 3 is a schematic plan view of a third embodiment of a back frame according to the invention with profiles and a deep-drawn sheet metal part
  • Fig. 5 is a hollow profile, made using the T3 technology for the embodiment of Fig. 3 and
  • FIG. 6 shows a top view of a sheet metal blank for the production of a hollow profile according to FIG. 5.
  • Fig. 1 shows first in a perspective view a first embodiment of a backrest frame 1 according to the invention, which is U-shaped.
  • the U-shaped backrest frame 1 consists of a
  • Half-shell 5 which in each case has a subregion 2 providing the transverse frame region and the subregions 3 and 4 forming the vertically extending frame regions.
  • another half-shell sheet 6 is now provided, which is connected to the half-shell sheet 5 cohesively, for example, welded.
  • the second half-shell sheet 5 thus reinforces the transverse frame region of the backrest frame 2 and partly the vertically extending frame regions 3 and 4 of the backrest frame 1.
  • a second embodiment of the backrest frame according to the invention is shown in Fig. 2, which is provided for a belt-integrated vehicle seat ⁇ .
  • the back frame 1 'for belt-integrated vehicle seats has in addition to the half-shell 5', which the
  • U-shaped back frame 1 ' substantially forms, in addition, a half-shell plate 6', which extends along the right Leg of the U-shaped back frame I 1 extends and insofar not only the transverse frame portion 2 ', but also the vertical frame portion 4' of the back frame completely reinforced.
  • a back frame 1 'for belt-integrated vehicle seats can be provided, which is easy to manufacture and allows the necessary rigidity to absorb the forces in the integration of the belt in the vehicle seat.
  • the cross sections of the vertically extending frame portions of the back frame are shown.
  • the vertically extending and reinforced frame area 4 'of the backrest frame 1' for belt-integrated vehicle seats has, for example, a closed cross-sectional area, whereas the vertically extending frame area 3 'has an open cross-sectional area. Recognizable in the sectional plane and the welds 13 ', which connect the half-shells 6' and 5 'to form the reinforced frame portion 4' cohesively.
  • Fig. 3 is now a schematic plan view of an embodiment of an alternative back frame 11 according to the invention, which consists of a deep-drawn sheet metal part 7, an open profile 8 and a hollow section 9 is shown.
  • the use of a deep-drawn sheet metal part 7 and an open profile 8 for a loan frame 11 is already known.
  • the hollow section 9 is made using T3 technology and has only a single weld 13.
  • the structure of the back frame 11 is particularly simple due to the small number of parts, and yet due to the use of the hoof profile 9, which can be achieved by the T3 technology has been produced, a maximum load capacity of the backrest frame can be achieved. Not shown in Fig.
  • the possibility of producing the hollow section 9 using the T3 technology wherein two shit seams connect both flangeless half-shells in butt joint with each other, so that also a flangeless hollow section 9 can be provided provided.
  • the connecting region 10 between the hollow profile 9 and the deep-drawn sheet metal part 7 shows the cutout 10 in Fig. 4 in a perspective view.
  • the flanges 7a, 7b, 7c of the sheet metal part 7 ensure optimum connection of the deep-drawn sheet metal part 7 to the hollow profile 9 in order to ensure maximum rigidity of the back frame 11.
  • the side part 9 has a changing cross section in the axial direction. These cross-sectional changes can be easily provided using T3 technology.
  • the cross section of the hollow section 9 may be adapted adapted to the load, for example, Fig. 5.
  • the cross section of the side part grows steadily, so that the mechanical strength of the hollow section 9 to use as Back frame can be adjusted in the vehicle seat.
  • a correspondingly complex cross-sectional surface profile of the hollow profile 9 can be produced in a simple manner by means of a sheet metal blank 12, as shown in FIG. 6.
  • the hollow profile 9 produced using T3 technology can then have a single weld seam 13. If the sheet metal blank 12 is further designed as a "tailored blank", further optimization of the loading situation for the use of the Hollow profiles are provided in the back frame of a vehicle seat.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

L'invention concerne un cadre de dossier (1, 1') pour un siège de véhicule, qui comprend une partie de cadre orientée transversalement et deux parties de cadre orientées verticalement et présentant une forme de U. L'objet de l'invention est la mise au point d'un cadre de dossier de ce type, comprenant un minimum de pièces, parallèlement à la mise au point, de manière simple, d'un cadre de dossier pour sièges de véhicule avec ceinture intégrée. A cet effet, une première demi-coque (5, 5') fournit les zones (3, 3', 4, 4') formant les parties verticales et la zone (2, 2') formant la partie transversale du cadre de dossier (1, 1'), et une seconde demi-coque (6, 6') qui est assemblée avec la première demi-coque (5, 5') par liaison de matière renforce au moins la partie transversale du cadre de dossier (1, 1'). Alternativement, une pièce de tôle (7) produite par emboutissage profond et formant la partie transversale du cadre est assemblée par liaison de matière par des brides (7a, 7b, 7c) avec deux profilés (8, 9) formant la partie verticale du cadre, au moins l'un des profilés (9) étant un profilé en hauteur sans bride, obtenu par formage.
EP10717160.5A 2009-05-08 2010-05-06 Châssis de dossier de siège de véhicule Active EP2427345B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009025780A DE102009025780A1 (de) 2009-05-08 2009-05-08 Lehnenrahmen eines Fahrzeugsitzes
PCT/EP2010/056192 WO2010128108A1 (fr) 2009-05-08 2010-05-06 Cadre de dossier pour un siège de véhicule

Publications (2)

Publication Number Publication Date
EP2427345A1 true EP2427345A1 (fr) 2012-03-14
EP2427345B1 EP2427345B1 (fr) 2019-09-25

Family

ID=42271842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10717160.5A Active EP2427345B1 (fr) 2009-05-08 2010-05-06 Châssis de dossier de siège de véhicule

Country Status (6)

Country Link
US (1) US10137812B2 (fr)
EP (1) EP2427345B1 (fr)
JP (1) JP5571169B2 (fr)
CN (1) CN102421635B (fr)
DE (1) DE102009025780A1 (fr)
WO (1) WO2010128108A1 (fr)

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DE102014007231A1 (de) 2014-05-09 2015-11-12 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Sitzlehnenstruktur eines Fahrzeugsitzes
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DE102019204727A1 (de) 2019-04-03 2020-10-08 Thyssenkrupp Steel Europe Ag Rückenlehne für einen Sitz
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Also Published As

Publication number Publication date
US10137812B2 (en) 2018-11-27
CN102421635A (zh) 2012-04-18
JP5571169B2 (ja) 2014-08-13
WO2010128108A1 (fr) 2010-11-11
EP2427345B1 (fr) 2019-09-25
US20120074755A1 (en) 2012-03-29
JP2012526015A (ja) 2012-10-25
DE102009025780A1 (de) 2010-11-11
CN102421635B (zh) 2015-06-24

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